What am I buying? - Fallout 2d20 Core Rulebook - Fantasy Grounds (VTT)

Could I please get some clarity for the product in the title? What exactly am I getting?

Based on the description, it looks like a copy of the core rules and access to a program where I can electronically create/manage my characters and campaign. Is that correct?

I see there’s a GM Toolkit - Fantasy Grounds (VTT). Is that an addition to the program as well as a hardcopy?

I received the hardcopy of the core rules for Christmas, and I recently purchased a hardcopy of the GM Toolkit, so just having access to the program would be awesome.